Orbital elements of OPS 4311
| Launched | 13 October 1971 |
| Flight ended | – |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 5557 |
| Alternative names |
DMSP 5B F1 |
| Date fetched |
Epoch osculation |
Inc. [°] |
Ecc. | RA asc node [hr] |
Arg Peri. [°] |
Mean anom [°] |
Mean motion [rev/day] |
Abs. mag |
| Date fetched |
Epoch osculation |
Inc. [°] |
Ecc. | RA asc node [hr] |
Arg Peri. [°] |
Mean anom [°] |
Mean motion [rev/day] |
Abs. mag |
| 2025 Dec 31 18:57 | 2025 Dec 31 05:48:20 | 99.0201 | 0.00509 | 6.4735 | 36.0673 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 30 18:56 | 2025 Dec 26 06:26:47 | 99.0205 | 0.00511 | 6.1310 | 50.3081 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 29 18:56 | 2025 Dec 26 06:26:47 | 99.0205 | 0.00511 | 6.1310 | 50.3081 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 28 18:57 | 2025 Dec 26 06:26:47 | 99.0205 | 0.00511 | 6.1310 | 50.3081 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 27 18:57 | 2025 Dec 26 06:26:47 | 99.0205 | 0.00511 | 6.1310 | 50.3081 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 26 18:56 | 2025 Dec 26 06:26:47 | 99.0205 | 0.00511 | 6.1310 | 50.3081 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 25 18:57 | 2025 Dec 20 12:35:40 | 99.0211 | 0.00513 | 5.7353 | 66.6823 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 24 18:56 | 2025 Dec 20 12:35:40 | 99.0211 | 0.00513 | 5.7353 | 66.6823 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 23 18:56 | 2025 Dec 20 12:35:40 | 99.0211 | 0.00513 | 5.7353 | 66.6823 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 22 18:57 | 2025 Dec 20 12:35:40 | 99.0211 | 0.00513 | 5.7353 | 66.6823 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 21 18:57 | 2025 Dec 20 12:35:40 | 99.0211 | 0.00513 | 5.7353 | 66.6823 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 20 18:57 | 2025 Dec 20 12:35:40 | 99.0211 | 0.00513 | 5.7353 | 66.6823 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 19 18:57 | 2025 Dec 12 06:13:17 | 99.0214 | 0.00514 | 5.1659 | 90.1722 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 18 18:57 | 2025 Dec 12 06:13:17 | 99.0214 | 0.00514 | 5.1659 | 90.1722 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 17 18:58 | 2025 Dec 12 06:13:17 | 99.0214 | 0.00514 | 5.1659 | 90.1722 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 16 18:57 | 2025 Dec 12 06:13:17 | 99.0214 | 0.00514 | 5.1659 | 90.1722 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 15 18:58 | 2025 Dec 12 06:13:17 | 99.0214 | 0.00514 | 5.1659 | 90.1722 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 14 18:56 | 2025 Dec 12 06:13:17 | 99.0214 | 0.00514 | 5.1659 | 90.1722 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 13 18:56 | 2025 Dec 12 06:13:17 | 99.0214 | 0.00514 | 5.1659 | 90.1722 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 12 18:57 | 2025 Dec 12 06:13:17 | 99.0214 | 0.00514 | 5.1659 | 90.1722 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 11 18:56 | 2025 Dec 07 06:51:38 | 99.0217 | 0.00514 | 4.8233 | 104.3122 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 10 18:56 | 2025 Dec 07 06:51:38 | 99.0217 | 0.00514 | 4.8233 | 104.3122 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 09 18:56 | 2025 Dec 07 06:51:38 | 99.0217 | 0.00514 | 4.8233 | 104.3122 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 08 18:56 | 2025 Dec 07 06:51:38 | 99.0217 | 0.00514 | 4.8233 | 104.3122 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 07 18:56 | 2025 Dec 07 06:51:38 | 99.0217 | 0.00514 | 4.8233 | 104.3122 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 06 18:56 | 2025 Dec 02 05:49:05 | 99.0221 | 0.00513 | 4.4758 | 118.6405 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 05 18:57 | 2025 Dec 02 05:49:05 | 99.0221 | 0.00513 | 4.4758 | 118.6405 | 324.3923 | 14.28424 | 7.243 |
| 2025 Dec 04 18:57 | 2025 Dec 02 05:49:05 | 99.0221 | 0.00513 | 4.4758 | 118.6405 | 324.3923 | 14.28424 | 7.243 |